Sure, as long as your website is just a tiny piece of plain text, and all your requests are distributed perfectly evenly over the course of the day, and every person only requests a single file and then leaves. But since none of that is even remotely close to realistic, your numbers are not either. Yes, 29k req/s is quite slow for a "serve a tiny static file" benchmark. No, you can not handle a billion visitors a day on one server with such low performance.